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Onion Seeds, Australian Brown
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Onion Seeds, Australian Brown
Description
(Allium cepa). Intermediate day. Introduced in 1897 by W. Atlee Burpee. This variety produces extra fine, large bulbs that have superb flavor! The yellow-brown roots are a standard on our farm for their reliable high quality.
- 110-130 days to maturity
- 6-12 hours of full sun
- Sprouts in 7-14 days
- Seed Depth: 1/4"
- Plant Spacing: 4-6"
- Ideal Temperature: 45-80 F
- Frost Hardy: Yes
Growing Tips, Tricks and FAQs
Growing Tips
The Australian Brown onion thrives in full sun and well-draining soil that is rich in organic matter. Regular watering is very important during bulb formation, but avoid overwatering to prevent rot. Onions do not compete well with weeds, so adding organic mulch can be helpful.
When to Grow
Start seeds indoors three months before the last expected frost date in spring. Onions begin slowly, so this early start allows for adequate growth before transplanting. Transplant acclimated, stocky seedlings into the garden 4-6 weeks before the last frost of spring, as onions can tolerate light frosts. For best results, check your local area’s frost-free dates to plan your planting schedule.
How to Sow and Plant
Sow seeds 1/4 inch deep in seed trays or directly in the ground if the conditions are frost-free. Keep the soil temperature around 60 F for best germination results. Space seedlings 4-6 inches apart, with rows 12 inches apart, to give the bulbs enough room to develop.
How to Grow
Apply a balanced fertilizer every 2-3 weeks, as onions are heavy feeders. Keep the soil evenly moist but not waterlogged. Weed regularly and mulch to conserve moisture and reduce weed competition. When the tops begin to yellow and fall over, stop watering to allow the bulbs to mature before harvest.
How to Save
- Onions will cross with other onions, and occasionally they will cross with scallion types like Welsh onions and Hi Shi Ko bunching onions. Onions will never cross with leeks, chives or garlic.
- If you are growing types that will cross, try to isolate varieties by at least several hundred feet or ideally up to one mile.
- Onions are a biennial seed crop, so you will need to overwinter your first-year roots, ideally by digging them up and storing them for the winter. Replant in early spring, and allow onions to shoot up spikes of purple flowers.
- Let seeds become dry on the plants. Pick seeds when they are hard and dark black, then bring them indoors to finish drying.
- Once dry, separate the seeds from the husks or leave them on and plant them husks and all.
FAQ
How do I know when Australian Brown onions are ready to harvest?
They are ready for harvest when the tops turn yellow and fall over naturally. This usually happens 110-130 days after transplanting.
How long can Australian Brown onions be stored?
They have an exceptional storage life, lasting up to 8 months when properly cured and stored.
How do Australian Brown onions taste?
These onions have a robust, pungent flavor, making them excellent for cooking. Their bold taste adds a nice touch to savory dishes, and they hold their flavor well even after long storage periods.
How do I determine day length and first-last frost in my area?
Check out our blog post: Our Experts Answer Questions, Share Resources for links to online guides.
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